Trap-chamber cover.



H. E. REED.

TRAP CHAMBER COVER.

APPLICATION FILED AUG. 2'1, 1912.

Patented Aug. 5, 1913.

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HERBERT E. REED, OF NEWTON, MASSACHUSETTS.

TRAP-CHAMBER COVER.

Specification of Letters Patent.

Patented Aug'. 5, 1913.

Application filed August 21, 1912. Serial No. 716,208.

To all whom t may concern:

Be it known that I, HERBERT E. REED, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Trap- Chamber Covers, of which. the following is a specification.

This invention relates to floors of bath rooms and other apartments, a trap chamber being located below the floor and provided with a removable cover forming a part of the ioor surface and adapted to be removed to afford access to a trap in said chamber.

The invention is embodied in a cover which when in place is inconspicuous and harmonizes with the surrounding portion of the floor, particularly when the latter is composed of tiles or cement, and is provided with a lift whereby it may be removed and replaced, the construction being such that when the cover is in place all the exposed surfaces of both the cover and lift are flush with the surrounding floor surface, the cover being free from liability to breakage and disigurement by the operations of removing and replacing it. The cover is used with a trap-chamber mouth which is a bushing adapted to be incorporated in a tile or cement floor and to constitute a seat for the cover and a protection against breakage and disfigurement of the oor material surrounding the cover, the said mouth and cover collectively constituting an article of builders hardware, and the cover being adapted to hold a veneer of tile or cement harmonizing with the surrounding floor.

Of the accompanying drawings forming a part of this application-Figure 1 represents a plan view of a portion of a tiled floor which includes a trap-chamber mouth and cover embodying my invention. Fig. 2 represents a section on line 2-2 of Fig. 1. Fig. 3 represents a perspective view of the bushing. Fig. 4 represents a perspective view of the pan forming a part of the cover. Fig. 5 represents a sectional view of the stud shown by Fig. 2 removed from the pan. Fig. 6 represents a side view of the lift removed from the stud. Fig. 7 represents a side view showing the stud and lift assembled, the lift being raised.

The same reference characters indicate the same parts in all the figures.

The surface of the floor surrounding the trap-chamber mouth is preferably of ornamental construction and formed by a Veneering of tiles 12. 13 represents the upper portion of a trap chamber below the level of the ioor surface, the said portion being here shown as formed in a cement base 12Z1 which supports the said veneering.

14 represents a metallic bushing incorporated in the floor and having its upper edge iush with the floor surface, the bushing being here shown as provided with an inwardly projecting flange 15 which is seated on the base l2a and forms a seat for the cover hereinafter described. The said cover includes a metal pan having a bottom 16 adapted to bear on the flange 15, and a curb 17 formed to closely fit the interior of the bushing 14, the upper edge of t-he curb being flush with the upper edge of the bushing when the cover is seated. The cover also includes a stud 18 secured to and proj ecting above the bottom of the pan, the upper end of the stud being flush with the upper edge of the curb 17. The stud is preferably secured adjustably to the pan, the pan bottom being' provided with a threaded orifice 19, and the stud with an external screw thread 2O engaging the thread of the orifice, provision being thus made for accurately adjusting the height of the upper end of the stud. A lock nut 21 may be employed to secure the stud in its adjusted position. The bottom and curb of the pan form a recess surrounding the stud 18 and adapted to hold a veneer corresponding with the surrounding iioor surface, said veneer being here shown as composed of tiles 22 resting on a cement base 23, the tiles next to the stud 18 being preferably cut away to closelyfit said stud. I prefer to provide the stud with a head 18 which overhangs portions of the adjoining tiles as shown by Fig. 2 and assists in holding the same in place.

`With the stud 18 is movably engaged a lift which is adapted to be raised above the cover and used as a handle whereby the cover may be manipulated, the lift having an exposed portion which is normally flush with` the upper end of the stud, and may be engaged by a suitable instrumentality to raise the lift to its operative position. The lift is preferably a rod 24 movable endwise in the stud 18, the latter being tubular, and provided with an outer head 25 which normally rests in a recess 26 in the outer end of the stud, and with an inner head 27 adapted to abut against an internal shoulder 28 formed on the bore of the stud. Vhen the lift is depressed, the head 25 is flush with the outer end of the stud 18 and the head 27 is below the shoulder 2S. The head 25 is so formed that there is a narrow crevice between its margin and the wall of the recess 2G into which a fingernail or a blade may be inserted to engage and raise the lift, the margin of the head 25 being preferably bev` eled to facilitate its engagement. Wlhen the lift is raised, as shown by F ig. 7, the inner head 2T bears on the shoulder 28, and the lift becomes a handle adapted to support the cover. lVhen the lift is released, it drops to the position shown by F ig. 2.

It will be seen that the tubular stud 1S is detachably and adjustably secured to the betteln of the pan, so that it may be readily removed to permit renewal or repair of the veneering and may be adjusted to bring its upper end to a position flush with the upper edge of the curb 17.

My invent-ion is not limited to use with tile or cement floors, and the veneer or filling inserted in the pan may be of any suitable material.

I claim l. A trap-chamber cover composed of a pan having a bottom and a marginal curb projecting upwardly therefrom, an upwardly projecting stud detachably and adjustably secured to the bottom of the pan so that its upper end may be adjusted flush with the upper edge of the curb, and a lift movably engaged with the stud and having an eX- posed portion normally iush with the upper end of the stud and adapted to be elevated above the stud to form a handle whereby the cover may be manipulated, the pan-bottom and curb forming a recess surrounding the stud and adapted to receive a veneer harmonizing with the floor.

2. A trap-chamber cover composed of a pan having a bottom and a marginal curb projecting upwardly therefrom, a stud attached to and projecting above the bottom of the pan, the upper end of the stud being flush with the upper edge of the curb, and a lift movably engaged with the stud and having an exposed portion normally flush with the upper end of the stud and adapted to be elevated above the stud to form a handle whereby the cover may be manipulated, the pan-bottom and curb forming a recess surrounding the stud and adapted to receive a veneer harmonizing with the fioor, and the stud being provided with a head formed to project over the central portion of said veneer.

3. A trap-chamber cover composed of a pan having a bottom and a marginal curb projecting upwardly therefrom, `the central portion of lthe pan-bottom bei-ng provided with a threaded orifice, a threaded stud engaged with the thread of said orifice and adjustable relatively te the pan-bottom to malte the outer end of the stud flush with the upper edge of the curb, and a lift movably engaged with the stud and having an 4eX- posed portion normally flush with the upperl end of the stud and adapted to be elevated above ,the stud to `form a handle whereby the cover may be manipulated, the pan-bottom and curb forming a recess surrounding the stud and adapted to receive a veneer lharmonizing with the floor.

4. A trap-chamber cover composed of a pan having `a bottom and a marginal curb .projecting upwardly therefrom, an upwardly project-ing tubular stud detachably and adjustably secured to the pan-bottom so that its upper end may be adjusted flush with the upper edge of the curb, and provided .in its upper end with a recess commimicating with the bore of the stud, said bore being `provided with a downwardly facing shoulder between its ends, and a :lift composed. of a rod movable endwise in the stud and having an outer head which normally rests loosely in said recess and is iiush with the outer end of the stud, and an inner head which is movable in the stud and is adapted to abut against said shoulder when the lift is raised, the margin of the outer head being separated from the margin of the recess by a crevice which permits the insertion of a lifting instrumentality.

ln testimony whereof I have affixed .my signature, in `presence of two witnesses.

C. F. Brown, P. l/V. Pnzznrri.

Copies of this patent may be obtained for five cents each, by addressing alle/Commissioner of Eatents, Washington, 1D. C. 

